TY - RPRT TI - Constraints on the formation of the Bitterroot Lobe of the Idaho Batholith, Idaho and Montana, from U-Pb zircon geochronology and feldspar Pb isotopic data AU - Margo I. Toth AU - J. S. Stacey PY - 1992 DO - 10.3133/b2008 UR - https://pubs.usgs.gov/publication/b2008 ID - b2008 ER -